What is the pressure of oxygen gas that is collected over water at 25 degrees celcius at an atmostpheric pressure of 800 mmkg?

Lab reagent, hypothesis test. a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl. these six measurements are assumed to be an srs of all possible measurements from solution. they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution. carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.

650.j is the same amount of energy as? 2720cal1550cal650.cal2.72cal

Identify arrows pointing to bonding electrons. done h-0-0-h ) intro